Process to laminate polyolefin sheets to urethane

Details Process to laminate polyolefin sheets to urethane Process to laminate polyolefin sheets to urethane

2006-06-06

2006-06-06

Corcoran, Gladys J P (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S072000

Reexamination Certificate

active

07056407

ABSTRACT:
The present invention relates to tufted goods comprising a greige good having fibers tufted into a primary backing, a precoat which is adhered to the back surface of the greige good, and a flexible film which is laminated to the back surface of the precoat. The flexible film is treated via corona-discharge prior to being laminated to the precoat. This invention also relates to a process for producing tufted goods. This process comprises treating a flexible film via corona-discharge, contacting the treated flexible film with the uncured or partially cured back surface of a precoated greige good, and curing the article. Optional embodiments of this invention include having a foam layer between the precoat and the flexible film, or having a foam layer on the back surface of the flexible film. An alternate embodiment of this invention comprises substituting a foam layer for the precoat.

REFERENCES:
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patent: 6299714 (2001-10-01), Takizawa et al.
patent: 6299715 (2001-10-01), Langsdorf et al.

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